Prognostic Evaluation Based on Dual-Time ¹⁸F-FDG PET/CT Radiomics Features in Patients with Locally Advanced Pancreatic Cancer Treated by Stereotactic Body Radiation Therapy

Figure 1

The workflow of radiomics analysis for prognosis. (a) Dual-time ¹⁸F-FDG PET/CT image data construction, (b) data preprocessing, including image registration, lesion segmentation, and data normalization, (c) features extraction, including statistical, morphological, and texture features, (d) features selection, including the univariate analysis and elastic net, (e) statistics analysis.